Good argument. I'll remember that when I want my worn out tyres replaced...Bob said:If the parking brake is required for safety and the car is unsafe without a working parking brake, then it seems that you have a good case to bring up to the Nissan regional manager about your car being unsafe. Although the warranty for normal things expires after 3 years, safety issues should be covered longer.
...hmmmm......
If the part carried a defect at manufacture then you can seek a remedy for up to 6 years, in the UK. If the defect occurs within 6 months it is presumed the fault was present at manufacture, unless the manufacturer proves otherwise. If the fault occurs after, it is for you to prove.
Any other 'warranty terms' depend on what the contract was that you both agreed to (e.g. a 'three year warranty' may have the effect of extending the 6mth presumption to 3yrs).
This doesn't obviously fall into the category of a fault at manufacture. This falls into the category of greedy, or careless, parts price setting.